LPS-39151 - Change Tab Style for Pills Style in Add Panel

Hey @natecavanaugh,

Attached is an update for http://issues.liferay.com/browse/LPS-39151.

NOTE: I wasn't sure how you wanted to style the pills so I kept them as the default.  If we want to style the pills like they are in the control panel, I am thinking that we will move the nav-pill styles to a defaulted CSS file in /portal/portal-web/docroot/html/themes/_styled/css.

Please let me know if you have any questions.  Thanks!